Geckos with dirty feet recovered their ability to cling to vertical surfaces after only a few steps. Nanotube Adhesive Sticks Better than a Gecko’s Foot. Each pad is covered with adhesive … In the present study, we demonstrate that gecko setae are a self-cleaning adhesive. Gecko's feet are able to stick to surfaces thanks to millions of microscopic hair-like projections known as setae. Their feet allow them to stick, upside down, to any type of material except Teflon. So far, scientists have developed “gecko tape,” a dry unidirectional adhesive, based on the gecko’s remarkable “toe fuzz.” When you pull the tape one direction, it sticks; but when you pull it another direction, it releases. The adhesion is based solely on the geometry of the fibers: sliding the tape against a surface uncurls the fibers to engage the adhesive while sliding the tape in the opposite direction causes it to unstick (check out this video demonstration ). University of Akron First synthetic gecko adhesive which cleans itself during use, as the natural gecko does. Replicating the adhesive rigid polymers manufactured in microfibers that are approximately the same size as gecko setae. After repeated contacts with clean glass, the microspheres are shed, and the fibers recover 30% of their original adhesion. The latest innovation inspired by biomimicry is an adhesive inspired by the power of gecko feet. Gecko biomimicry produces adhesive better than the real thing. Replicating the self-cleaning attribute that naturally occurs when gecko feet accumulate particles from an exterior surface between setae. Although self-cleaning by water droplets occurs in plant and animal surfaces, no adhesive has been shown to self-clean. Three elements are at play: foot structure, surface material structure and the type of interaction between the two. After contamination by microspheres, the microfiber array loses all adhesion strength. 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